(19)

(11)

EP 2 422 079 A2

(12)

(88) Date of publication A3: 16.06.2011 (43) Date of publication: 29.02.2012 Bulletin 2012/09 (21) Application number: 10713095.7 (22) Date of filing: 06.04.2010

(51) International Patent Classification (IPC):  F03D 5/00(2006.01) (86) International application number: PCT/US2010/030071 (87) International publication number: WO 2010/129124 (11.11.2010 Gazette 2010/45)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR (30) Priority: 04.05.2009 US 215201 P 04.05.2009 US 215202 P 04.05.2009 US 215204 P (71) Applicant: Skywind, Inc. Andover, MA 01810 (US)	(72) Inventors: ZHANG, Jianjun Cupertino, CA 95014 (US) ZOU, Nanzhi Fremont, CA 94539 (US) ZHOU, Wang-Long Andover, MA 01810 (US) (74) Representative: Style, Kelda Camilla Karen  Page White & Farrer Bedford House John Street London, WC1N 2BF London, WC1N 2BF (GB)